How FalconX Prevents Blind Signing for Institutional Trades with Blockaid

The Challenge: Institutional crypto trading requires speed

FalconX operates a high-velocity institutional trading environment where capital allocation decisions move fast. As traders execute transactions at scale, every transaction must meet the governance standards FalconX upholds for clients and counterparties.

While FalconX’s MPC workflow reduced single points of failure, it created time-consuming, manual reviews of transaction details, slowing down operations. As trading scaled, the team recognized a need for additional tooling beyond their existing MPC architecture. 

Blockaid’s Solution: Real-time transaction security

FalconX requires automated, deterministic, and output-based transaction validation, embedded directly in their existing signing flow. The solution needs to secure high-value transactions without sacrificing the velocity demanded by the business.

Blockaid's Cosigner does exactly this. It quickly integrated into FalconX's existing MPC wallet architecture and execution workflows. For each proposed transaction, Cosigner:

• Simulates onchain execution in a sandboxed environment 
• Analyzes and displays contract interactions and token movements
• Evaluates malicious or unintended behavior of the complete transaction method 
• Enforces policy rules based on expected transaction outcomes

This evaluation occurs in under 300 milliseconds, enabling real-time security and policy enforcement without disrupting trading velocity. Transactions then either proceed, are routed to additional approvers, or are blocked — based on defined policies and risk procedures. 

Results

With Cosigner in place, FalconX enhanced their approval workflows with real-time, outcome-informed enforcement:

• Sub-300ms transaction validation embedded directly in the signing flow
• Elimination of blind signing in high-velocity environments
• System-enforced approval logic simplifying manual coordination
• Stronger audit defensibility through evidence-based decision records
• Increased confidence in deploying capital onchain at scale

"Blockaid has been a strong partner for FalconX, combining deep security expertise with a world-class proactive and highly responsive team. Their support has helped us move with greater confidence while reinforcing the integrity of our platform and operations." — Brandon Cigri, Head of Onchain Ecosystems at FalconX

Why Blockaid: Transaction simulation and validation

For institutional trading firms operating at FalconX’s velocity, governance can’t be a speed bump. Deploying capital onchain at scale requires continuous risk evaluation and automated intervention. 

For firms scaling high-value, high-velocity onchain activity, security and operational speed should not be in tension. By integrating Blockaid’s Cosigner, FalconX proves they don’t have to be. 

About Blockaid

Blockaid is the onchain security platform trusted by the largest companies operating in Web3. Built by veterans of elite intelligence and cybersecurity units, Blockaid provides end-to-end protection for financial institutions, protocols, and end users — combining direct wallet and dApp integrations with real-time monitoring, detection, and response across smart contracts, infrastructure, and externally owned accounts. Since 2025, Blockaid scanned over 6.3+ billion transactions and blocked 585+ million attacks. Blockaid is the security infrastructure behind Coinbase, MetaMask, Uniswap, Safe, and dozens of the most widely used platforms in the industry.

Learn more at blockaid.io, and follow us on Twitter and LinkedIn.